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GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2508
Given Kudos: 1053
GPA: 3.39
Circle O, as shown in the figure above, has diameters of DB
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24 Mar 2020, 00:22
24 Mar 2020, 00:22
Expert Reply
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Question Stats:
75% (00:51) correct
25% (00:05) wrong based on 4 sessions
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Circle O, as shown in the figure above, has diameters of DB and AC and has a circumference of 9. What is the length of minor arc BC?
(A) 4
(B) 11/3
(C) 7/2
(D) 13/4
(E) 3
Re: Circle O, as shown in the figure above, has diameters of DB
[#permalink]
26 Mar 2020, 09:57
26 Mar 2020, 09:57
Expert Reply
since OA = OB
Angle OAB = Angle OBA = 70
Angle BOC = Sum of 2 interior opposite angles = 70 + 70 = 140
Arc BC = (140/360) * 9 = 7/2
Angle OAB = Angle OBA = 70
Angle BOC = Sum of 2 interior opposite angles = 70 + 70 = 140
Arc BC = (140/360) * 9 = 7/2
gmatclubot
Re: Circle O, as shown in the figure above, has diameters of DB [#permalink]
26 Mar 2020, 09:57
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